Polymer Technology, Inc.
Records under this name other than the patents Polymer Technology, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 2 patents it holds.
Back to Polymer Technology, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,157,528 | Permselective Structurally Robust Membrane Material Term ended Term ended May 21, 2024 · High confidence | Term ended | Term ended May 21, 2024 | High confidence |
| US 6,692,528 | Devices that change size/shape via osmotic pressure Term ended Term ended Nov 8, 2021 · From the USPTO record | Term ended | Term ended Nov 8, 2021 | From the USPTO record |
| US 7,368,056 | Production of potable liquids Lapsed on the fee record Ended May 6, 2020 · From the USPTO record | Lapsed on the fee record | Ended May 6, 2020 | From the USPTO record |
| US 4,083,735 | Method of balancing rotors and composition therefor Formerly held Term ended Term ended no later than Apr 11, 1998 · Low confidence | Term ended | Term ended no later than Apr 11, 1998 | Low confidence |
| US 4,152,508 | Silicone-containing hard contact lens material Formerly held Term ended Term ended no later than May 1, 1999 · Low confidence | Term ended | Term ended no later than May 1, 1999 | Low confidence |
| US 4,168,112 | Contact lens with a hydrophilic, polyelectrolyte complex coating and method for forming same Formerly held Term ended Term ended no later than Sep 18, 1999 · Low confidence | Term ended | Term ended no later than Sep 18, 1999 | Low confidence |
| US 4,321,261 | Ionic ophthalmic solutions Formerly held Term ended Term ended no later than Mar 23, 2002 · Low confidence | Term ended | Term ended no later than Mar 23, 2002 | Low confidence |
| US 4,330,383 | Dimensionally stable oxygen permeable hard contact lens material and method of manufacture Formerly held Term ended Term ended no later than May 18, 2002 · Low confidence | Term ended | Term ended no later than May 18, 2002 | Low confidence |
| US 4,357,173 | Lens cleaning and polishing method Formerly held Term ended Term ended no later than Nov 2, 2002 · Low confidence | Term ended | Term ended no later than Nov 2, 2002 | Low confidence |
| US 4,394,179 | Abrasive-containing contact lens cleaning materials Formerly held Term ended Term ended no later than Jul 19, 2003 · Low confidence | Term ended | Term ended no later than Jul 19, 2003 | Low confidence |